| MANDREL:
A part of the slitting
machine assembly on which cores are fitted and that individual
rolls of tape are wound.
MASS:
The adhesive substance
that gives a pressure-sensitive tape its properties. It is the
adhesive.
Exudation:
See - Cold Flow
Pick-Off: See - Backsize
Weight: Amounts of dry adhesive that is left on the substrate
or backing. Generally described in terms of ounces per
square yard.
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MAT:
A web of fibers.
MATTE FINISH:
Dull, non-reflective,
irregular surface of the tapes backing.
M.E.K. (METHYL
ETHYL KETONE):
An oxygenated solvent
that dissolves certain types of vinyl resins and nitrite rubbers.
METALISED POLYESTER
(or OTHER FILM):
A polyester film upon
which a thin layer of metal has been deposited.
METERING ROLL:
Part of the reverse
roll coating head that serves to create a nip or aperture regulating
the amount of adhesive applied by the casting roll.
METHYLENE CHLORIDE:
Strong cleaning solvent
used in capacitor industry.
MIGRATION:
Movement of an ingredient
from one part of a tape onto another part, or between a tape and
the surface to which the tape has been applied.
MODULUS:
A measurement that
defines the stress/strain characteristics of a material. Expressed
as the force in pounds per square inch required to cause an elongation.
MOISTURE RESISTANCE:
Tapes resistance to
the passage or the absorption of moisture, or to the effects of
the moisture.
MOLECULAR WEIGHT:
Measure of the size
of an organic molecule or polymer.
MONOMER:
Basic building block
from which a polymer chain is made.
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